Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Restricted Stock Units (RSUs) [Member] Preferred Stock [Member]	Restricted Stock Units (RSUs) [Member] Common Stock [Member]	Preferred Stock [Member]	Common Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings, Appropriated [Member]	Total
Balance (in shares) at Dec. 31, 2020			0	13,235,038
Balance at Dec. 31, 2020			$ 0	$ 139,726	$ (992)	$ (130,006)	$ 8,728
Exercise of stock options (in shares)			0	37,380
Exercise of stock options			$ 0	$ 68	0	0	68
Issuance of common stock upon settlement of restricted stock units (RSUs) (in shares)			0	182,004
Stock-based compensation			$ 0	$ 596	0	0	596
Net loss			0	0	0	(1,462)	(1,462)
Foreign currency translation, net of tax			$ 0	$ (8)	(22)	0	(30)
Sale of common stock (in shares)			0	6,902,677
Sale of common stock			$ 0	$ 31,936	0	0	31,936
Issuance of common stock upon settlement of RSUs (in shares)			0	182,004
Issuance of common stock upon settlement of RSUs			$ 0	$ 0	0	0	0
Balance (in shares) at Sep. 30, 2021			0	20,357,099
Balance at Sep. 30, 2021			$ 0	$ 172,318	(1,014)	(131,468)	39,836
Balance (in shares) at Jun. 30, 2021			0	13,479,220
Balance at Jun. 30, 2021			$ 0	$ 140,494	(1,035)	(130,573)	8,886
Exercise of stock options (in shares)			0	11,875
Exercise of stock options			$ 0	$ 14	0	0	14
Issuance of common stock upon settlement of restricted stock units (RSUs) (in shares)	0	72,206
Stock-based compensation			0	218	0	0	218
Net loss			0	0	0	(895)	(895)
Foreign currency translation, net of tax			$ 0	$ 16	21	0	37
Sale of common stock (in shares)			0	6,793,798
Sale of common stock			$ 0	$ 31,576	0	0	31,576
Issuance of common stock upon settlement of RSUs (in shares)	0	72,206
Balance (in shares) at Sep. 30, 2021			0	20,357,099
Balance at Sep. 30, 2021			$ 0	$ 172,318	(1,014)	(131,468)	39,836
Balance (in shares) at Dec. 31, 2021			0	20,374,406
Balance at Dec. 31, 2021			$ 0	$ 172,397	(1,024)	(132,248)	$ 39,125
Exercise of stock options (in shares)			0	67,500			67,500
Exercise of stock options			$ 0	$ 79	0	0	$ 79
Issuance of common stock upon settlement of restricted stock units (RSUs) (in shares)			0	51,921
Stock-based compensation			$ 0	$ 298	0	0	298
Net loss			0	0	0	(2,638)	(2,638)
Foreign currency translation, net of tax			$ 0	$ 0	(62)	0	(62)
Issuance of common stock upon settlement of RSUs (in shares)			0	51,921
Issuance of common stock upon settlement of RSUs			$ 0	$ 0	0	0	0
Cash settlement of performance stock units			$ 0	$ (137)	0	0	(137)
Balance (in shares) at Sep. 30, 2022			0	20,493,827
Balance at Sep. 30, 2022			$ 0	$ 172,637	(1,086)	(134,886)	36,665
Balance (in shares) at Jun. 30, 2022			0	20,468,395
Balance at Jun. 30, 2022			$ 0	$ 172,445	(1,072)	(133,761)	37,612
Exercise of stock options (in shares)			0	8,125
Exercise of stock options			$ 0	$ 8	0	0	8
Issuance of common stock upon settlement of restricted stock units (RSUs) (in shares)	0	17,307
Stock-based compensation			0	184	0	0	184
Net loss			0	0	0	(1,125)	(1,125)
Foreign currency translation, net of tax			$ 0	$ 0	(14)	0	(14)
Issuance of common stock upon settlement of RSUs (in shares)	0	17,307
Balance (in shares) at Sep. 30, 2022			0	20,493,827
Balance at Sep. 30, 2022			$ 0	$ 172,637	$ (1,086)	$ (134,886)	$ 36,665